Chest Size: 40" | Estimated Size: Medium Slim - Label suggests a chest around 92cm

The design has a few handy features

Small bit of marking on the collar

biggest flaw is the start of a hole on the rear about 2mm

Musician's Lyre Patches

British Royal Air Force No. 1 Dress Jacket - Medium 188/108 Peacoat Chest Size: 40" | EstimatedAt a glance 100% Wool Body 2 Button Chest Pockets, 2 Flap Waist Pockets & 2 Internal Slit Pockets Button Closure Engraved Eagle "Staybrite" Buttons "Southampton University Air Squadron" Sleeve Patches Fully Lined Classic Air Force Blue Colour RAF Service Dress Pit to Pit: 21. 5" Suggested Size: Medium Regular Label reads 108cm Sleeve Length: 26. 5" Long Label recommends a height around 188cm Collar to Hem: 33" Modern Militaria Issued 1989 1995 Genuine